The phrase "production run" refers to the process of making a specific batch or quantity of products during a certain period of time in a factory or manufacturing facility. Full definition
A limited production run of just 50 concept models will go on sale in the first quarter of next year. (autoline.tv)
The company has opened an ordering list for a limited production run of three to five units. (roadandtrack.com)
The games were given very limited production runs in the west, so it's now very hard to find some Fire Emblem games cheaply, or even at their original retail pricing. (nintendofuse.com)